Home / 8,667.60-11,960.28-5,130.96

Finding the Fourth Proportional to 8,667.60, 11,960.28 and 5,130.96

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Solution

The fourth proportional to 8,667.60, 11,960.28 and 5,130.96 is: 7,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.60 : 11,960.28 = 5,130.96 : x
  2. Step 2: Convert to fraction form
    8,667.60/11,960.28 = 5,130.96/x
  3. Step 3: Cross multiply
    8,667.60x = 11,960.28 × 5,130.96
  4. Step 4: Simplify right side
    8,667.60x = 61,367,718.27
  5. Step 5: Solve for x
    x = 61,367,718.27/8,667.60
  6. Step 6: Final answer
    x = 7,080.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.